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Earth

Heat we emit could warm the Earth

By Mark Buchanan

26 November 2008

New Scientist. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

This picture, taken with a thermal imaging camera, reveals how much heat is being emitted by City Hall in London

(Image: National Pictures)

EVEN if we turn to clean energy to reduce carbon emissions, the planet might carry on warming anyway due to the heat released into the environment by our ever-increasing consumption of energy.

That’s the contentious possibility raised by Nick Cowern and Chihak Ahn of the School of Electrical, Electronic and Computer Engineering at Newcastle University, UK. They argue that human energy consumption could begin to contribute significantly to global warming a century from now.

Cowern and Ahn…

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